ACCOLADE™ACCOLADE™ EL MRI - L331

Boston Scientific pacemakers are indicated for treatment of the following conditions:

• Symptomatic paroxysmal or permanent second- or third-degree AV block
• Symptomatic bilateral bundle branch block
• Symptomatic paroxysmal or transient sinus node dysfunction with or without associated AV conduction disorders (i.e., sinus bradycardia, sinus arrest, sinoatrial [SA] block)
• Bradycardia-tachycardia syndrome, to prevent symptomatic bradycardia or some forms of symptomatic tachyarrhythmias
• Neurovascular (vaso-vagal) syndromes or hypersensitive carotid sinus syndromes

Adaptive-rate pacing is indicated for patients exhibiting chronotropic incompetence and who may benefit from increased pacing rates concurrent with increases in minute ventilation and/or level of physical activity. Dual-chamber and atrial tracking modes are also indicated for patients who may benefit from maintenance of AV synchrony.

Dual chamber modes are specifically indicated for treatment of the following:

• Conduction disorders that require restoration of AV synchrony, including varying degrees of AV block
• VVI intolerance (i.e., pacemaker syndrome) in the presence of persistent sinus rhythm
• Low cardiac output or congestive heart failure secondary to bradycardi

Indications, Safety, and Warnings